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lix/src/libstore/build.hh

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* Renamed `normalise.cc' -> `build.cc', `storeexprs.cc' -> `derivations.cc', etc. * Store the SHA-256 content hash of store paths in the database after they have been built/added. This is so that we can check whether the store has been messed with (a la `rpm --verify'). * When registering path validity, verify that the closure property holds.
2005-01-19 16:39:47 +00:00
#ifndef __BUILD_H
#define __BUILD_H
* Refactorings.
2003-07-20 19:29:38 +00:00
* Renamed `normalise.cc' -> `build.cc', `storeexprs.cc' -> `derivations.cc', etc. * Store the SHA-256 content hash of store paths in the database after they have been built/added. This is so that we can check whether the store has been messed with (a la `rpm --verify'). * When registering path validity, verify that the closure property holds.
2005-01-19 16:39:47 +00:00
#include "derivations.hh"
* Refactorings.
2003-07-20 19:29:38 +00:00
* Terminology fixes.
2005-01-20 16:01:07 +00:00
/* Ensure that the output paths of the derivation are valid. If they
are already valid, this is a no-op. Otherwise, validity can
be reached in two ways. First, if the output paths have
substitutes, then those can be used. Second, the output paths can
be created by running the builder, after recursively building any
sub-derivations. */
* `nix-store --build' now builds its arguments in parallel instead of sequentially (within the limits set by `--jobs'). This should greatly improve the utilisation of the build farm when doing Nixpkgs builds.
2005-01-19 15:02:02 +00:00
void buildDerivations(const PathSet & drvPaths);
* Refactorings.
2003-07-20 19:29:38 +00:00
* Terminology fixes.
2005-01-20 16:01:07 +00:00
/* Ensure that a path is valid. If it is not currently valid, it may
be made valid by running a substitute (if defined for the path). */
* Started removing closure store expressions, i.e., the explicit representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
void ensurePath(const Path & storePath);
* Substitutes and nix-pull now work again. * Fixed a segfault caused by the buffering of stderr. * Fix now allows the specification of the full output path. This should be used with great care, since it by-passes the normal hash generation. * Incremented the version number to 0.4 (prerelease).
2003-10-16 16:29:57 +00:00
* Terminology fixes.
2005-01-20 16:01:07 +00:00
/* Read a derivation, after ensuring its existence through
ensurePath(). */
* Started removing closure store expressions, i.e., the explicit representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
Derivation derivationFromPath(const Path & drvPath);
* Substitutes and nix-pull now work again. * Fixed a segfault caused by the buffering of stderr. * Fix now allows the specification of the full output path. This should be used with great care, since it by-passes the normal hash generation. * Incremented the version number to 0.4 (prerelease).
2003-10-16 16:29:57 +00:00
* Change extension `.store' to `.drv'. * Re-enable `nix-store --query --requisites'.
2005-01-19 14:36:00 +00:00
/* Place in `paths' the set of all store paths in the file system
* Started removing closure store expressions, i.e., the explicit representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
closure of `storePath'; that is, all paths than can be directly or
* In nix-store: added query `--referers-closure' that returns the closure of the referers relation rather than the references relation, i.e., the set of all paths that directly or indirectly refer to the given path. Note that contrary to the references closure this set is not fixed; it can change as paths are added to or removed from the store.
2005-01-25 11:18:03 +00:00
indirectly reached from it. `paths' is not cleared. If
`flipDirection' is true, the set of paths that can reach
* Change `referer' to `referrer' throughout. In particular, the nix-store query options `--referer' and `--referer-closure' have been changed to `--referrer' and `--referrer-closure' (but the old ones are still accepted for compatibility).
2005-12-13 21:04:48 +00:00
`storePath' is returned; that is, the closures under the
`referrers' relation instead of the `references' relation is
returned. */
* Started removing closure store expressions, i.e., the explicit representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
void computeFSClosure(const Path & storePath,
* In nix-store: added query `--referers-closure' that returns the closure of the referers relation rather than the references relation, i.e., the set of all paths that directly or indirectly refer to the given path. Note that contrary to the references closure this set is not fixed; it can change as paths are added to or removed from the store.
2005-01-25 11:18:03 +00:00
PathSet & paths, bool flipDirection = false);
* Started removing closure store expressions, i.e., the explicit representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
* It is now possible to add store derivations or paths directly to a user environment, e.g., $ nix-env -i /nix/store/z58v41v21xd3ywrqk1vmvdwlagjx7f10-aterm-2.3.1.drv or $ nix-env -i /nix/store/hsyj5pbn0d9iz7q0aj0fga7cpaadvp1l-aterm-2.3.1 This is useful because it allows Nix expressions to be bypassed entirely. For instance, if only a nix-pull manifest is provided, plus the top-level path of some component, it can be installed without having to supply the Nix expression (e.g., for obfuscation, or to be independent of Nix expression language changes or context dependencies).
2005-02-14 17:35:10 +00:00
/* Return the path corresponding to the output identifier `id' in the
given derivation. */
Path findOutput(const Derivation & drv, string id);
* Renamed `normalise.cc' -> `build.cc', `storeexprs.cc' -> `derivations.cc', etc. * Store the SHA-256 content hash of store paths in the database after they have been built/added. This is so that we can check whether the store has been messed with (a la `rpm --verify'). * When registering path validity, verify that the closure property holds.
2005-01-19 16:39:47 +00:00
#endif /* !__BUILD_H */
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